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diff --git a/application/libraries/Auth/OpenID/MySQLStore.php b/application/libraries/Auth/OpenID/MySQLStore.php
new file mode 100644
index 0000000..810f059
--- /dev/null
+++ b/application/libraries/Auth/OpenID/MySQLStore.php
@@ -0,0 +1,77 @@
+<?php
+
+/**
+ * A MySQL store.
+ *
+ * @package OpenID
+ */
+
+/**
+ * Require the base class file.
+ */
+require_once "Auth/OpenID/SQLStore.php";
+
+/**
+ * An SQL store that uses MySQL as its backend.
+ *
+ * @package OpenID
+ */
+class Auth_OpenID_MySQLStore extends Auth_OpenID_SQLStore {
+    /**
+     * @access private
+     */
+    function setSQL()
+    {
+        $this->sql['nonce_table'] =
+            "CREATE TABLE %s (\n".
+            "  server_url VARCHAR(2047) NOT NULL,\n".
+            "  timestamp INTEGER NOT NULL,\n".
+            "  salt CHAR(40) NOT NULL,\n".
+            "  UNIQUE (server_url(255), timestamp, salt)\n".
+            ") ENGINE=InnoDB";
+
+        $this->sql['assoc_table'] =
+            "CREATE TABLE %s (\n".
+            "  server_url BLOB NOT NULL,\n".
+            "  handle VARCHAR(255) NOT NULL,\n".
+            "  secret BLOB NOT NULL,\n".
+            "  issued INTEGER NOT NULL,\n".
+            "  lifetime INTEGER NOT NULL,\n".
+            "  assoc_type VARCHAR(64) NOT NULL,\n".
+            "  PRIMARY KEY (server_url(255), handle)\n".
+            ") ENGINE=InnoDB";
+
+        $this->sql['set_assoc'] =
+            "REPLACE INTO %s (server_url, handle, secret, issued,\n".
+            "  lifetime, assoc_type) VALUES (?, ?, !, ?, ?, ?)";
+
+        $this->sql['get_assocs'] =
+            "SELECT handle, secret, issued, lifetime, assoc_type FROM %s ".
+            "WHERE server_url = ?";
+
+        $this->sql['get_assoc'] =
+            "SELECT handle, secret, issued, lifetime, assoc_type FROM %s ".
+            "WHERE server_url = ? AND handle = ?";
+
+        $this->sql['remove_assoc'] =
+            "DELETE FROM %s WHERE server_url = ? AND handle = ?";
+
+        $this->sql['add_nonce'] =
+            "INSERT INTO %s (server_url, timestamp, salt) VALUES (?, ?, ?)";
+
+        $this->sql['clean_nonce'] =
+            "DELETE FROM %s WHERE timestamp < ?";
+
+        $this->sql['clean_assoc'] =
+            "DELETE FROM %s WHERE issued + lifetime < ?";
+    }
+
+    /**
+     * @access private
+     */
+    function blobEncode($blob)
+    {
+        return "0x" . bin2hex($blob);
+    }
+}
+